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Fri 21 Jun, 2013 07:39 am
A factory manufactures watches and 100 watches are packed in a box.
The probability that a watch is defective is given by 0.004.
Find the probability that there are less than 3 defective watches in a box.
@LOLA SOLNCE,
The expected number of defects in the box is 0.4
The cumulative Poisson probability for X < 3 = 0.99207